Organocatalytic reactions of 3 hydroxy 2 pyrone and n arylsulfonyl 3 hydroxy 2 pyridone 3
Organocatalytic reactions of 3 hydroxy 2 pyrone and n arylsulfonyl 3 hydroxy 2 pyridone 1
... 3- hydroxy- 2- pyrone and N- substituted- 3hydroxy- 2- pyridone Chapter References 10 11 12 13 14 Nicolaou, K C.; Snyder, S A.; Montagnon, T.; Vassilikogiannakis, G Angew Chem Int Ed 20 02, 41, 16 68 -16 98 ... 1. 1) .10 Enantiomeric excess as high as 77% was obtained and the selectivity was good H HO N R2 OR1 R N N R = H, cinchonidine R = OMe, quinine N H R1 = R2 =...
Ngày tải lên: 14/09/2015, 08:47
Organocatalytic reactions of 3 hydroxy 2 pyrone and n arylsulfonyl 3 hydroxy 2 pyridone 2
... 3( 0) 10 3a MeCN Ph rt 82 5(0) 11 3a CH2Cl2 Ph -20 80 81 (20 ) 12 3a CH2Cl2 Ph -40 82 85(15) 13 3a CH2Cl2 Ph -40 81 88 (28 ) 14 3a CH2Cl2 Cy -40 82 88 (20 ) 15 a CPS 3a CH2Cl2 Bn -40 83 87 (20 ) Isolated ... product of 3- hydroxy- 2- pyrone and 2- chloro-5-nitrobenzaldehyde was protected with TsCl in the presence of triethylamine using standard procedures Scheme 2. 22 Pro...
Ngày tải lên: 14/09/2015, 08:47
Organocatalytic reactions of 3 hydroxy 2 pyrone and n arylsulfonyl 3 hydroxy 2 pyridone 3
... Chapter 3. 1 3- Hydroxy- 2- pyridone 3- Hydroxy- 2- pyridone 4a is a cyclic diene which has the following structure: Figure 3. 1 3- Hydroxy- 2- pyridone 4a The main structural difference in pyrone and pyridone ... 48 Chapter 3. 2 Asymmetric reactions of N- arylsulfonyl -3- hydroxy- 2- pyridones As mentioned, using cinchonidine as catalyst, the Diels-Alder re...
Ngày tải lên: 14/09/2015, 08:47
Organocatalytic reactions of 3 hydroxy 2 pyrone and n arylsulfonyl 3 hydroxy 2 pyridone 4
... 51 .4, 53. 4, 63. 7, 78.0, 115.0, 1 23 . 4, 127 .3, 128 .9, 131 .6, 1 32 .2, 137 .2, 141 .0, 144 .7, 159 .2, 170.5, 1 72. 4, 1 72. 8 FTIR (KBr): 6 74, 1 137 , 1171, 1 23 2 , 1 34 6, 140 8, 1686, 1 736 , 29 43 , 29 74, 34 38 cm-1 ... 7.16-7.18 (m, 2H), 7 .41 -7 .49 (m, 3H) 13 C NMR ( 125 MHz CDCl3 ppm): δ 21 .1, 22 .6, 44 .4, 48 .3, 51 .4, 78 .4, 1 23 . 8, 126 .3, 129 .3, 129 .4, 13...
Ngày tải lên: 14/09/2015, 08:47
Tài liệu Báo cáo khóa học: Quantitative analysis, using MALDI-TOF mass spectrometry, of the N-terminal hydrolysis and cyclization reactions of the activation 2 process of onconase pdf
... (Met1)-ONC (M23L) by the addition of AAP, as described in the Materials and methods Completion of the hydrolysis was confirmed by the disappearance of the (Met1)-ONC (M23L) signal in the MALDI-TOF mass ... other methods for the production and purification of the enzyme [13] The molecular mass of each purified product, as measured by MALDI-TOF MS, was 11...
Ngày tải lên: 19/02/2014, 12:20
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 2 of 3
... Department of Commerce, 528 5 Port Royal Rd., Springfield, VA 22 161 Order No DE 920 19790 THERMODYNAMICS, HEAT TRANSFER, AND FLUID FLOW ABSTRACT The Thermodynamics, Heat Transfer, and Fluid Flow Fundamentals ... Version, 2nd Edition, John Wiley and Sons, New York, ISBN 0-4 7 1-0 418 8 -2 Kreith, Frank, Principles of Heat Transfer, 3rd Edition, Intext...
Ngày tải lên: 17/03/2014, 15:00
báo cáo khoa học: "Systematic evaluation of implementation fidelity of complex interventions in health and social care Henna Hasson1,2,3" pdf
... systematically implementation fidelity and possible factors influencing fidelity of complex interventions in health and social care The purpose is to test the conceptual framework for implementation fidelity ... Discussion The aim of this project is to systematically evaluate implementation fidelity and possible factors influencing fidelity of complex...
Ngày tải lên: 10/08/2014, 10:23
Encyclopedia of Smart Materials (Vols 1 and 2) - M. Schwartz (2002) WW Part 3 pot
... Quartz d 33 (pC/N) g 33 (10 3 Vm/N) kt kp 33 Tc (◦ C) BaTiO3 PZT-4 PZT-5 PbTiO3 :Sm 2 .3( x-cut) 58 0.09 19 0 12 .6 0 .38 0 .33 17 00 13 0 289 26 .1 0. 51 0.58 13 00 32 8 5 93 19 .7 0.50 0.65 34 00 19 3 65 42 0 .30 ... (5): d 33 = 2Q 11 ε0 33 P3 , M 11 = Q 11 (ε0 33 ) , (3a) (3b) where 33 and P3 are the relative permittivity and polarization in the polar direction, ε0...
Ngày tải lên: 11/08/2014, 02:21
báo cáo khoa học: " Globalization and social determinants of health: The role of the global marketplace (part 2 of 3)" ppsx
... [http:// Page 16 of 17 (page number not for citation purposes) Globalization and Health 20 07, 3:6 22 4 22 5 22 6 22 7 22 8 22 9 23 0 23 1 23 2 23 3 23 4 23 5 23 6 23 7 23 8 23 9 24 0 24 1 24 2 24 3 24 4 24 5 24 6 www.unige.ch/iued/new/recherche/ruig-dsd/docs/SAN-SA-01.pdf] ... Science 1997, 551 :22 2 -23 4 150 Warf B, Holly B: The Rise and Fall and Rise o...
Ngày tải lên: 11/08/2014, 18:20
Encyclopedia of Smart Materials (Vols 1 and 2) - M. Schwartz (2002) Episode 3 pps
... (− 72) 10 ( 14 5) 11 ( 16 0) −4 ( 13 1) −4 ( 13 1) 10 3 volt.m/N 11 (16 0) 25 (36 5) 25 (36 5) 23 (76) 26 (85) 10 3 volt.m/N 4.6 19 00 13 00 17 60 29 13 (6 23) 10 (480) (4 31 ) 10 (480) 12 (575) 15 ( 718 ) 14 ... d 33 T3 , E E E S1 = s 11 T1 + s12 T2 + s 13 T3 + d 31 E3 , E E E S2 = s 11 T2 + s12 T1 + s 13 T3 + d 31 E3 , E E S3 = s 13 (T1 + T2 ) + s 33 T3 + d 33 E3...
Ngày tải lên: 13/08/2014, 05:20
General Report of Dredging Waterway of Corridor No 2 and 3 - Mekong Delta Transport Infrastructure Development Project (MDTIDP)
... -5 4 -6 0 -6 5 -4 4 -3 5 -5 - 13 -7 0 20 95 - 130 -1 08 -7 5 -7 4 - 82 -8 8 - 63 - 53 -1 8 -2 9 - 93 21 98 -1 50 - 130 - 92 -9 0 -1 00 -1 07 -7 8 -6 8 -2 9 -4 1 -1 12 22 100 -2 0 0 -1 80 - 130 - 130 -1 40 -1 40 - 120 - 120 -6 0 -7 0 -1 60 ... -6 0 -5 5...
Ngày tải lên: 28/05/2015, 13:57
Synthesis and biological investigation of pyrimido 1,2 a 1,3,5 triazine and its analogues 2
... Methionine aminopeptidase Translation, ribosomal structure and biogenesis 2ea2, 1boa, 2gg8, 2p98, 2g6p 2. 948 0.58 62 43 1-aminocyclopropane-1carboxylate deaminase Amino acid transport and metabolism ... hepatocyte growth factor activity 3f 82, 3cd8 2. 956 0 .27 23 Branched-chain-amino-acid aminotransferase, mitochondrial Amino acid transport and metabolism 1kta, 1kt8 2. 94 0 .26...
Ngày tải lên: 10/09/2015, 15:49
Synthesis and biological investigation of pyrimido,1,2 a ,1,3,5,triazine and its analogues 1
... derivatives Anti-fungal activity was stated for derivatives 10 1a against Microsporum canis and average affinity of 10 1b for serotoninergic 5-HT 1A and 5-HT2B receptors was also published by Lucry and ... cyclocondensation of biguanide and its analogues 13 2 with ethyl acetoacetate gave 12 8 -13 1 as reported by Curd and Rose92 (Scheme 39, Method A) There was a nee...
Ngày tải lên: 10/09/2015, 15:49
Studies of electrodes modified with zeolites and poly(4 nitro 2 phenylenediamine) and their composite 3
... 126 5 .2 Experimental 128 5 .2. 1 Reagents 128 5 .2. 2 Apparatus 128 5 .2. 3 Procedure 129 5 .3 Results and discussion 131 5 .3. 1 Characterization of the composites in the media (pH =2) 133 5 .3 .2 Characterization ... studies of poly(4- nitro- 1 ,2- phenylenediamine) films 65 3. 1 Introduction 66 3 .2 Experimental 68 3 .2. 1 Reagents 68 3 .2. 2 Apparatus 68 3 .2....
Ngày tải lên: 16/09/2015, 17:12
